<template>
  <div>
      <qwerty title1="首页" title2="商品管理" title3="参数列表"></qwerty>

      <el-card style="margin-top:20px">
        <el-alert type="warning" show-icon title="注意：只允许为第三级分类设置相关参数！"></el-alert>
        <el-row class="cat-opt" style="margin-top:20px">
          <el-col>
            <span>选择商品分类：</span>
            <el-cascader clearable expand-trigger="hover" @change="handleChange"
              v-model="selectedCateKeys" :options="catelist" :props="cateProps"></el-cascader>
          </el-col>
        </el-row>

        <!-- Tabs 标签页  -->
        <el-tabs v-model="activeName" @tab-click="handleTabClick">
          <el-tab-pane label="动态参数" name="many">
            <el-button type="primary" :disabled="isBtnDisabled" @click="addVisible=true">添加参数</el-button>
            <el-table  style="margin-top:20px" :data="manyData" border stripe>
                <el-table-column type="expand">
                  <template slot-scope="scope">
                    <el-tag :key="index" v-for="(item,index) in scope.row.attr_vals" closable :disable-trasitions="false" @close="handleClosedt(index,scope.row)">
                      {{item}}
                      </el-tag>
                     <el-input class="input-new-tag" v-model="scope.row.inputValue" v-if="scope.row.inputVisible" ref="saveTagInput" size="small"
                      @keyup.enter.native="handleInputConfirm(scope.row)"
                      @blur="handleInputConfirm(scope.row)"></el-input>
                      <el-button v-else class="button-new-tag" size="small" @click="showInput(scope.row)">+Naw Tag</el-button>
                  </template>
                </el-table-column>
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="attr_name" label="参数名称">
                </el-table-column>
                <el-table-column label="操作">
                    <template slot-scope="scope">
                  <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row)">编辑</el-button>
                  <el-button size="mini" type="danger" icon="el-icon-delete" @click='del(scope.row)'>删除</el-button>
                  </template>
                </el-table-column>
            </el-table>
          </el-tab-pane>
          <el-tab-pane label="静态参数" name="only">
            <el-button type="primary" :disabled="isBtnDisabled" @click="addVisible=true">添加参数</el-button>
            <el-table  style="margin-top:20px" :data="onlyData" border stripe>
                <el-table-column type="expand">
                  <template slot-scope="scope">
                    <el-tag :key="index" v-for="(item,index) in scope.row.attr_vals" closable :disable-trasitions="false" @close="handleClosedt(index,scope.row)">
                      {{item}}
                      </el-tag>
                     <el-input class="input-new-tag" v-model="scope.row.inputValue" v-if="scope.row.inputVisible" ref="saveTagInput" size="small"
                      @keyup.enter.native="handleInputConfirm(scope.row)"
                      @blur="handleInputConfirm(scope.row)"></el-input>
                      <el-button v-else class="button-new-tag" size="small" @click="showInput(scope.row)">+Naw Tag</el-button>
                  </template>
                </el-table-column>
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="attr_name" label="属性名称">
                </el-table-column>
                <el-table-column label="操作">
                    <template slot-scope="scope">
                  <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row)"></el-button>
                  <el-button size="mini" type="danger" icon="el-icon-delete" @click='del(scope.row)'></el-button>
                  </template>
                </el-table-column>
            </el-table>
          </el-tab-pane>
        </el-tabs>
      </el-card>

      <el-dialog :title="'添加'+titleText" :before-close="handleClose" :visible.sync="addVisible" width="40%" @close="addDialogClosed">
        <el-form :rules="rules" ref="addFormRef" label-width="80px" :model="addForm">
          <el-form-item :label="titleText" prop="attr_name">
              <el-input v-model="addForm.attr_name"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="handleClose">取 消</el-button>
            <el-button type="primary" @click="addParams">确 定</el-button>
        </span>
      </el-dialog>

      <el-dialog :title="'修改'+titleText" :before-close="handleClose" :visible.sync="editDialogVisible" width="40%" @close="editDialogClosed">
        <el-form :rules="rules" ref="editFormRef" label-width="80px" :model="editForm">
          <el-form-item :label="titleText" prop="attr_name">
              <el-input v-model="editForm.attr_name"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="handleClose">取 消</el-button>
            <el-button type="primary" @click="editParams">确 定</el-button>
        </span>
      </el-dialog>
  </div>
</template>

<script>
export default {
  data(){
    return{
      cateProps:{
        value:"cat_id",
        label:'cat_name',
        children:'children',
      },
      catelist:[],
      selectedCateKeys:[],
      activeName:'many',
      addVisible:false,
      editDialogVisible:false,
      manyData:[],
      onlyData:[],
      attr_vals:[],
      addForm:{
        attr_name:'',
      },
      editForm:{
        attr_name:""
      },
      rules:{
        attr_name: [{
            required: true,
            message: '请输入参数名称',
            trigger: 'blur'
        }]
      },
        inputVisible: false,
        inputValue: ''
    }
  },
  methods:{
    async del(row){
      // categories/:id/attributes/:attrid
      var {data:res}=await this.request.delete(`categories/${this.cateId}/attributes/${row.attr_id}`);
      console.log(res);
      if(res.meta.status !==200){
          return this.$message.error("删除失败！")
      }
      this.$message.success("删除成功");
      this.getParamsData()
    },
    handleClosedt(i,row) {
        // this.dynamicTags.splice(this.dynamicTags.indexOf(tag), 1);
        row.attr_vals.splice(i,1)
        this.saveAttrVals(row)
      },
    showInput(row) {
      // console.log(row);
      row.inputVisible = true;
      this.$nextTick(_ => {
        this.$refs.saveTagInput.$refs.input.focus();
      });
    },

    handleInputConfirm(row) {
      // let inputValue = this.inputValue;
      // if (inputValue) {
      //   this.dynamicTags.push(inputValue);
      // }
      if(row.inputValue.trim().length===0){
        row.inputValue=''
        row.inputVisible=false
        return
      }
      row.attr_vals.push(row.inputValue.trim())
      row.inputVisible = false;
      row.inputValue = '';
      this.saveAttrVals(row)
    },
    async saveAttrVals(row){
      // console.log(row.attr_vals);
      const{data:res} =await this.request.put(`categories/${this.cateId}/attributes/${row.attr_id}`,{
        attr_name:row.attr_name,
        attr_sel:row.attr_sel,
        attr_vals:row.attr_vals.join(' ')
      })
      console.log(res);
      if(res.meta.status !==200){
        return this.$message.error("修改参数失败！")
      }
      this.$message.success('修改参数成功')
    },
    editParams(){
      this.$refs.editFormRef.validate(async valid =>{
        if(!valid) return
        const{data:res} =await this.request.put(`categories/${this.cateId}/attributes/${this.addForm.attr_id}`,{
          attr_name:this.editForm.attr_name,
          attr_sel:this.activeName,
          attr_vals:this.attr_vals,
        })
        console.log(res);
        if(res.meta.status !==200){
          return this.$message.error("修改参数列表失败！")
        }
        this.$message.success('修改参数成功')
        this.handleClose()
        this.getParamsData()
      })
    },
    editDialogClosed(){
      this.$refs.editFormRef.resetFields();
    },
    async showEditDialog(row){

      const {data:res} =await this.request.get(`categories/${this.cateId}/attributes/${row.attr_id}`,{
        params:{attr_sel:this.activeName}
        ,
        })
      // console.log(res);
      if(res.meta.status !==200){
        return this.$message.error("获取信息失败！")
      }
      this.addForm=res.data
        
        // console.log(row);
        // this.addForm.attr_id=row.attr_id;
        // this.addForm.attr_name=row.attr_name;
        this.attr_vals=row.attr_vals.join(" ");

        console.log(row.attr_vals);
        this.editDialogVisible=true
    },
    addParams(){
      this.$refs.addFormRef.validate(async valid =>{
        if(!valid) return
        const{data:res} =await this.request.post(`categories/${this.cateId}/attributes`,{
          attr_name:this.addForm.attr_name,
          attr_sel:this.activeName
        })
        // console.log(res);
        if(res.meta.status !==201){
          return this.$message.error("添加参数列表失败！")
        }
        this.$message.success('添加参数成功')
        this.handleClose()
        this.getParamsData()
      })
    },
    handleTabClick(){
       this.getParamsData()
    },
    addDialogClosed(){
      this.$refs.addFormRef.resetFields()
    },
    handleChange(){
      this.getParamsData()
    },
    async getParamsData(){
      if(this.selectedCateKeys.length !==3){
        this.selectedCateKeys=[]
        this.manyData=[]
        this.onlyData=[]
        return
      }

      const {data:res} =await this.request.get(`categories/${this.cateId}/attributes`,{params:{sel:this.activeName}})
      console.log(res);
      if(res.meta.status !==200){
        return this.$message.error("获取参数列表失败！")
      }

       res.data.forEach(item=>{
        //  item.attr_vals=item.attr_vals.split(' ')
         item.attr_vals=item.attr_vals?item.attr_vals.split(' '):[]
         item.inputVisible=false
         item.inputValue=''
       })
       
       if(this.activeName ==='many'){
         this.manyData=res.data
       }else{
        //  alert(1)
         this.onlyData=res.data
       }
    },
    async getCateList(){
      const {data:res} =await this.request.get('categories')
      if(res.meta.status !==200){
        return this.$message.error("获取商品分类失败！")
      }
      this.catelist=res.data
    },
    handleClose() {
        this.editForm.attr_name = '';
        this.addForm.attr_name = '';
        this.addVisible = false;
        this.editDialogVisible = false;
    },
  },
  created(){
    this.getCateList();
  },
  computed:{
    titleText(){
      if(this.activeName==='many'){
        return '动态参数'
      }
      return '静态参数'
    },
    isBtnDisabled(){
      if(this.selectedCateKeys.length !==3){
        return true
      }
      return false
    },
    cateId(){
      if(this.selectedCateKeys.length===3){
        return this.selectedCateKeys[2]
      }
      return null
    }
  }
}
</script>

<style>
.el-cascader {
    width: 20% !important;
}
.cat_opt{
  margin: 15px 0;
}
.el-tag{
  margin: 10px;
}
.input-new-tag{
  width: 120px;
}
.el-input--small  {
  width: 10% !important;
}
</style>